Wrench



-July 29, 1930. l. c. sAUNDRs WRENCH Filed vMarch 28, 1928 Patented July29, 1930 i UNrrED STA-T 13A enrrr sAUNDnns, or oriiivronfr, MNTANA"WRENCH Application "filed March 28, reas. sriai'irojaeum.

The present invention is directed to improvements in wrenches.

The primary object of the invention is to provide a device of thischaracter so con- 5 structed that the movable jaw of the wrench may beadjusted independently after the same has been initially adj usted bythe feed nut.

Another object of the` invention is to provide a wrench so constructedthat the same can function in the manner of a pair of pliers in orderthat a nut or otherelement may be firmly gripped for removal orreplacement. y

Another object of the invention is to provide a wrench having connectedthereto an auxiliary pivotally mounted handle so arranged that whengrasped with the usual handle the sliding jaw of the wrench may beadjusted after the adjustmenttherebythrougl the medium of the feed nut.1

While the drawing illustrates a preferred embodiment of the invention,it is to be understood that in adapting the means to meet specic needsand requirements, the design may be varied and such otherchanges in theminor details of construction may be resorted to within the scope of theinvention as claimed, without departing from the lspirit thereof. j

For a full understanding of the invention and the merits thereof,reference is to be had to the following description and the drawinghereto attached, in which- Figure 1 is a side elevation of the device.Figure 2 is a sectional view on line 2-2 of Figure 1.

Figure 3 is a sectional view on line 3-3 of Figure 1. f

FigureeL is a detail perspective view of the aw. l 1 Corresponding andlike parts are referred toin the following descriptionand designated inthe several views of the drawing by like reference characters.

Referring to the drawing, 1 designates the handle having formed integraltherewith the Vhead 2, said head carrying a fixed jaw 3. The head isprovided with a longitudinal groove 4t in which is slidable the guideweb 5 of the movable jaw 6, said web being provided with teeth 7.

The head 21isiprovided with an opening 8 i which is Abridgedby the shaft9.and upon which is slidably and rotatably `mounted the feed nut 10,saidnut having spiral-ribs for engagement with the teeth7 of the guideweb. It will be observed that the opening 8 is of such length that thenut may slide in either direction upon the shaft 9. Obviously, uponrotation of the nut the jaw 6 may be moved toward or away from the fixedjaw 3.

One end wall of the opening 8 is formed lwith a curved surface 11, thepurpose of which .will be later" explained.

An auxiliary handle 12 is employed and is formed from sheet metalandbent into channel form so as to accommodate the handle 1 as saidhandles approach each other.

, The auxiliary handle 12 is pivotally connected to the handle 1 by apin 13, said handle being provided adjacent its pivotal connection witha pair of spaced fingers 111 which span the shaft 9 in order to engagethe adj acent end of the feed nut 10.

-A `dog 15 is provided and is pivotally connected to the handle 12 by apin 16, said dog having a1 curved face 17 for engaging the curvedportion 11 of the opening 8. in order that the same will be effectivelyguided in its movement. The dog is provided upon its free end withAspaced projections 18 which span the shaft 9 and engage the adjacent endvof the feed nut 10 in opposition to the fingers 14. j I

Asshown in full lines in Figure 1 the jaw 6 has been adjusted uponrotation of the feed nut 10, after which both handles are grasped uwhich causesthe handle 12 to approach the handle 1, whereupon the dog 15will slideso that the projections 18 will move the jaw 6 towards the aw3 owing to the fact that said L projections engage the adjacent end ofthe feed nut, thereby causing the jaw 6 to firmly Y grip the nut orother article in the manner of a pair of pliers. Obviously, when thehandle A wrench comprising Aa handle having a tot j 12 is swungaway'from the handle 1 the iin- 9 5 head and fixed jaw at one end, thehead hav-A ing a transverse opening and an outwardly extending groove,the lower wall of the opening being formed on the are of a circle, amov- 5 able jaw slidable" in the said groove, a nut in threadedengagement with the movable'j aw, a shaft extending across the saidtransverse opening and passing loosely through ther nut whichis free torotate and slide thereon, an auxiliary handle pivoted to the headconcentric with the beforementioned curved wall and provided withforwardly spaced fingers spanning the said shaft and engaging over theupper end of the nut, and a dog pivoted to the auxiliary handle andhaving its lower side curved and slidable on the said curved wall, andhaving its end in Contact with the lower end of the said nut. v v Intestimony whereof I aiix my signature. Y IRA C. SAUNDERS. [L- s.]

